Star · M4V
ULAS J144220.94+084945.9
ULAS J144220.94+084945.9 is a main-sequence star of spectral type M4V in the constellation Boötes, 205.5 light-years from the Sun.
| Constellation | Boötes |
|---|---|
| Distance | 205.5 light-years (63.0 pc) |
| Apparent magnitude | magnitude 22.80 |
| Absolute magnitude | magnitude 18.80 |
| Spectral type | M4V |
| Surface temperature | 2,980 K |
| Luminosity | 4.73 × 10⁻⁵ L☉ |
| Radius | 0.0259 R☉ |
| Mass | 0.075 M☉ (estimated) |
| Right ascension (J2000) | 14h 42m 21.0s |
| Declination (J2000) | +8° 49′ 45″ |
| Space velocity (relative to the Sun) | 3.1 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 22.80. Visible from the whole Northern Hemisphere and south to latitude 81° S. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1821. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.6 million years.
The Sun seen from there
From a planet around ULAS J144220.94+084945.9, the Sun would look like a star of magnitude 8.83, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 72980 11.6 light-years
- SDSS J143911.87+082315.6 12.2 light-years
- HIP 72447 12.4 light-years
- HIP 71497 16.8 light-years
- HIP 71819 17.1 light-years
- HIP 71034 17.9 light-years
- HIP 70424 18.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.